Suprastapled Peptides: Hybridization-Enhanced Peptide Ligation and Enforced α-Helical Conformation for Affinity Selection of Combinatorial Libraries
作者:Pramod M. Sabale、Mateusz Imiołek、Pierre Raia、Sofia Barluenga、Nicolas Winssinger
DOI:10.1021/jacs.1c07013
日期:2021.11.17
chemical ligation, we show that a mixture of peptide fragments can be combinatorially ligated and used directly in affinity selection against a target of interest. This approach was exemplified with a focused library targeting the p-53/MDM2 interaction. One hundred peptides were obtained in a one-pot ligation reaction, selected by affinity against MDM2 immobilized on beads, and the best binders were
具有强制α-螺旋构象的钉合肽已被证明可以克服针对蛋白质-蛋白质相互作用 (PPI) 的短肽开发中的主要限制。虽然越来越多的主肽方法有助于它们的制备,但合成文库筛选并未广泛采用装订方法。在这里,我们报告了一种利用短 PNA-肽缀合物杂交的策略,其中核碱基驱动的组装促进肽片段的连接并将肽的构象限制为 α-螺旋。使用天然化学连接,我们表明肽片段的混合物可以组合连接并直接用于针对感兴趣目标的亲和力选择。这种方法以针对 p-53/MDM2 相互作用的集中库为例。